Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"IUCN Red List"”.
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Applications of the IUCN Red List in evaluating global extinction risk of timber tree species.
… subset of timber tree species by applying the IUCN Red List (Red List) of Threatened Species Categories and Criteria; and, lastly, to evaluate the uncertainty of these preliminary Red List assessments. Consolidation of open-access timber lists produced a ‘working list’ of 1,578 angiosperm …
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The IUCN red list for ecosystems: how does it compare to South Africa's approach to listing threatened ecosystems?
… International Union for Conservation of Nature (IUCN) Red List of Ecosystems (RLE) standards is an important development that has received broad acceptance globally. More than 100 countries across the globe including South Africa and Myanmar have adopted the IUCN RLE standards as their national …
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Impact of climate change on extinction risk of montane tree species.
… in temperature and precipitation, from global predictions under different climate change scenarios. It then gives an insight on the current and potential threats to biodiversity in the Andean region, including the identification of those that are most likely to be responsible for increasing the …
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Assessing species richness patterns and conservation threats (due to overharvesting and climate change) in South African Cycads, with emphasis on a population of Encephalartos tranvenosus Stapf and Burt Davy from the Soutpansberg Mountain, Limpopo Province
… high extinction risk. Currently they are referred to as the most threatened plant group in the world. Many ecological and anthropological forces are promoting extinction crisis of this taxonomic group. Africa is one of the centres of diversity of this plant group with 70% of the total number of …
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Effect of fear and representations of great white sharks on great white shark conservation behavior
Great white sharks are listed as a vulnerable species under the International Union for Conservation of Nature (IUCN) red list. This study uses the theory of planned behavior (TPB) to test how different factors such as attitudes, subjective norms, perceived behavioral control along with …
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Conserving the iconic and highly threatened mahseer fishes of South and Southeast Asia.
… papers across seven peer review journals and an IUCN Red List assessment. The mahseers (Tor spp.) represent an iconic group of large-bodied cyprinid fishes found throughout the fast-flowing rivers of South and Southeast Asia. Due to the considerable religious, cultural and recreational …
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Quantifying Shoebill (Balaeniceps rex) habitat suitability in the Bangweulu Wetlands, Zambia
… Wetlands, Zambia. The Shoebill is considered Vulnerable on the IUCN red list, but there are no pre-existing quantitative data on the composition of suitable habitat for this species. Both univariate and multivariate analyses revealed that non-wetland habitats as well as non-vegetated …
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The foraging ecology and conservation of the Great Black-backed Gull Larus marinus
… due to anthropogenic activities has multilayered consequences for seabird populations. Seabirds may suffer direct impacts such as reduced resource availability due to competition with fisheries, but deterioration in marine resources may also trigger indirect impacts such as the destabilisation …
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Phylogeny and Biogeography of Ice Crawlers (Insecta: Grylloblattodea): Evidence from Six Molecular Loci
… (Insecta: Grylloblattodea) are rarely encountered insects that consist of five genera representing 26 species from North America and Asia. Asian grylloblattids are the most diverse, but North American ice crawlers (genus Grylloblatta) are known for their adaptation to cold conditions. …
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Assessing conservation measures for five Southern African endemic shark species
… Union for the Conservation of Nature (IUCN) Red List. However, South Africa continues its efforts to protect the marine environment with a network of 42 Marine Protected Areas established; the Second National Plan for the Protection of Sharks was published in 2022. Sharks, which are …
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An investigation into the root of two of the main vulture threats: poisoning and belief-based use of vulture body parts in Southern Kenya
… of eight Kenyan vulture species are currently listed as ‘Endangered' or ‘Critically Endangered' on the IUCN Red List. Poisoning caused by human-wildlife conflicts is a major threat to vultures after belief-based use of their body parts. A total of 1387 interviews were administered within Maasai …
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The conservation of the snow leopard (panthera uncia) and an action plan for the Indian Himalaya population
… in the wild. Snow leopards were previously listed as an endangered species on the IUCN Red List, but 2017 saw the species demoted to vulnerable following a reassessment of the age of maturity used in population estimates. In addition to this change in status, there have been new discussions …
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Global Conservation Status and Threat Patterns of the World’s Most Prominent Forage Fishes (Teleostei, Clupeiformes)
… basic biology and population trends. I applied IUCN Red List methodology, a comprehensive and systematic approach to assessing extinction risk of species, to all clupeiform species. I then used these assessments to synthesize and address their global conservation status and to highlight the …
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Population genetics and conservation of the endemic Mus cypriacus.
… been described to be of least concerned in the IUCN red list, there is lack of information on its ecology and demography, as well as a poor understanding of its genetic population structure. Using the mitochondrial D-loop, single nucleotide polymorphisms and microsatellite data, I investigated …
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Hotspots, Extinction Risk and Conservation Priorities of Greater Caribbean and Gulf of Mexico Marine Bony Shorefishes
… is important for allocation of resources to redress biodiversity loss. Regional organizations tasked with managing threats to the 1,360 marine bony shorefishes of the Caribbean and Gulf of Mexico would benefit from a delineation of conservation priorities. However, prior to this study, …
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AMUR TIGER PREDATION AND ENERGETIC REQUIREMENTS IN THE RUSSIAN FAR EAST: NEW INSIGHTS FROM GLOBAL POSITIONING SYSTEM COLLARS
The IUCN Red List has classified all subspecies of tigers (Panthera tigris) as endangered with prey depletion being widely recognized as one of the primary drivers of tiger declines. Due to substantial energetic requirements, tigers can only survive and reproduce in areas with healthy prey …
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AMUR TIGER PREDATION AND ENERGETIC REQUIREMENTS IN THE RUSSIAN FAR EAST: NEW INSIGHTS FROM GLOBAL POSITIONING SYSTEM COLLARS
The IUCN Red List has classified all subspecies of tigers (Panthera tigris) as endangered with prey depletion being widely recognized as one of the primary drivers of tiger declines. Due to substantial energetic requirements, tigers can only survive and reproduce in areas with healthy prey …
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Behavioral Ecology, Taxonomy, and Conservation Genetics of the Bahama Oriole (Icterus northropi)
… sound management plan for this critically endangered bird. In the first of five studies, I measured plumage variation among four allopatric populations of the former Icterus dominicensis complex in the Caribbean. Diagnosable plumage differences among populations contributed to the subsequent …
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Instrumental conditioning and learning in Poroderma Pantherinum
… species of South Africa. This species is listed as data deficient on the IUCN red list and known threats due to anthropogenic impacts include fatalities because of bycatch and depredation in the small-scale commercial fishing industry. It has been suggested that sharks can be attracted to …
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The biology, ecology and population trends of jacopever Helicolenus dactylopterus in South Africa
… investigation indicated a selective benthic predator with an ontogenetic shift in diet from crustaceans to teleosts. To assess habitat preference, generalised linear models were fitted to broad and fine resolution abundance data from research trawls and video footage respectively. Trawl data …
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